Hi Alan,

This was a problem at fist for me. I was trying to use the wwnn and wwpn
that I saw when the online was done. This is not what I use correct (as
it only got errors on the vm console) I would use the real wwnn and wwpn
for 
The tape drives I'm looking to get to .. correct ?

Paul


-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Alan Altmark
Sent: Monday, June 04, 2007 5:58 PM
To: [email protected]
Subject: Re: RHEL 4 - FCP - tape drives

On Monday, 06/04/2007,  Brad Hinson <[EMAIL PROTECTED]> wrote:
> > I believe you set them up just as you would any other FCP lun:
> >
http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/s390-multi-i
> > nstall-guide/s1-s390info-zfcp.html
> >
> > If you need to share the tape drive across multiple LPARs, you'll
need
> > to use NPIV:
> > http://linuxvm.org/present/SHARE107/S9257vs.pdf

NPIV has nothing to do with sharing across LPARs.  Sharing is simply a
matter of giving an multiple LPARs access to different subchannels the
same FCP chpid.

N_Port ID Virtualization (NPIV) assigns each subchannel on the FCP chpid
its own WWPN so that FC fabric access controls can be applied to each
LPAR
or guest individually at the subchannel level rather than at the chpid
level (as is done on machines without NPIV).  To use this support your
FC
switch must support NPIV.

Alan Altmark
z/VM Development
IBM Endicott

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